at first. and i just said "what are you talking about?" and she said "lauren has been hit by the propeller, we have to call 911." >> a girl walked into an airplane prop, i need an ambulance immediately. >> where are you, ma'am? >> 230 aero country in mckinney. >> reporter: lauren exited the plane, just like this one, while the engine was still running. the propeller, still spinning. at first, she walked towards the rear of the plane. but then, doubled back to the front, a fateful choice. lauren's father was at home when the phone rang. >> it was our friend calling me and telling me that lauren had been in this horrible accident. i just kept saying, "oh, my god, oh, my god." and i was crying, "lord, please save her life." >> reporter: as jeff raced to the hospital, lauren lay on the tarmac, fighting for her life. and cheryl faced a mother's worst nightmare. >> i could see the plane, and then i could can see lauren just lying face-down.